The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 1981
Filed:
Aug. 30, 1979
Applicant:
Inventor:
Nathaniel E Hager, Jr, Lancaster, PA (US);
Assignee:
Armstrong Cork Company, Lancaster, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219345 ; 219355 ; 219354 ; 219342 ;
Abstract
A flat ribbon-type heater is subjected to convection loss of heat when air moves across the ribbon heater. This convection loss is minimized by providing a wall structure on either side of the ribbon heater. The wall height to ribbon width must be controlled to maximize the output of radiant energy output and minimized convection loss. Maximum efficiency occurs when the wall height(h) is equal to one half the width(w) of the ribbon heater. Baffles may be placed along the length of the ribbon heater to minimize air current flow along the ribbon heater.